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When North and South America joined at Panama, animals that had been separated for millions of years were in contact. North American mammals, which gave live birth, outcompeted the South American mars ...
Human population has increased dramatically, but there are many ways to measure biological success.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be lo ...
Plasma is the 4th state of matter. This ionized gas makes up stars and is used for products on earth such as neon lights and plasma TVs.
It is an educational content of CK-12 Foundation (to access som ...
What would happen to gravity and Coriolis Effect if you tried to dig a hole through the center of the Earth.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you m ...
Evidence that Barringer Crater was formed by a meteorite impact includes high pressure minerals, overturned sedimentary rock layers, rock debris and fragments of the meteorite.
It is an educational con ...
A dog sense the P-waves that arrive before the damaing S-waves during an earthquake. Early earthquake detection devices do the same thing.
It is an educational content of CK-12 Foundation (to access so ...
Find out what Apollo astronauts saw on the moon, how scientists have developed hypotheses to explain them, and how they plan to test these hypotheses.
It is an educational content of CK-12 Foundation ( ...
Hipervinculo Ciencias de la Tierra y Medioambiente
How Wegener's hypothesis of continetal drift was refined.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Hipervinculo Ciencias de la Tierra y Medioambiente
How Wegener's hypothesis of continetal drift was refined.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
Solid rock is worn down through weathering.
It is an educational content of CK-12 Foundation (to access some of the CK-12 contents you must be logged in).
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